A sanitary pad auxiliary appendage for separate attachment at the rear end of a sanitary pad so as to form an extension of said sanitary pad, said auxiliary appendage comprising a base portion and a fin-like structure extending at least a portion of the length of said base portion, said fin-like structure projecting upwardly from said base portion, said fin-like structure adapted to at least partially fill a crevice between the buttocks of a user so as to form a barrier between the thighs and buttocks of said user.